1. Department of Chemistry, University of York, York YO10 5DD, United Kingdom
2. Syngenta Crop Protection AG, Schaffhauserstrasse, Basel 4332, Switzerland
3. Syngenta Crop Protection AG, Münchwilen, Breitenloh 5, Basel 4333, Switzerland
4. Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX, United Kingdom